Why won't the rendered image be my current active camera view?
You might have a different camera, or object set as active camera.
To find the active camera go to the scene tab in the properties window. The active camera can be selected there.

Or you can set the active camera (or object as camera) in the 3D viewport.
Select a camera (or object) and make it an Active Camera

The shortcut is Ctrl+Numpad 0